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提交 35b961cf 编写于 作者: B bellard
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2104 c046a42c-6fe2-441c-8c8c-71466251a162
上级 8ccad811
隐藏空白更改
内联 并排
Showing with 110 addition and 98 deletion
hw/lance.c
浏览文件 @ 35b961cf
......@@ -48,7 +48,7 @@ do { printf("LANCE: " fmt , ##args); } while (0)
#define LE_RDP 0
#define LE_RAP 1
#define LE_MO_PROM 0x8000 /* Enable promiscuous mode */
#define LE_MO_PROM 0x8000 /* Enable promiscuous mode */
#define LE_C0_ERR 0x8000 /* Error: set if BAB, SQE, MISS or ME is set */
#define LE_C0_BABL 0x4000 /* BAB: Babble: tx timeout. */
......@@ -67,36 +67,36 @@ do { printf("LANCE: " fmt , ##args); } while (0)
#define LE_C0_STRT 0x0002 /* Start the card */
#define LE_C0_INIT 0x0001 /* Init the card */
#define LE_C3_BSWP 0x4 /* SWAP */
#define LE_C3_BSWP 0x4 /* SWAP */
#define LE_C3_ACON 0x2 /* ALE Control */
#define LE_C3_BCON 0x1 /* Byte control */
/* Receive message descriptor 1 */
#define LE_R1_OWN 0x80 /* Who owns the entry */
#define LE_R1_ERR 0x40 /* Error: if FRA, OFL, CRC or BUF is set */
#define LE_R1_FRA 0x20 /* FRA: Frame error */
#define LE_R1_OFL 0x10 /* OFL: Frame overflow */
#define LE_R1_CRC 0x08 /* CRC error */
#define LE_R1_BUF 0x04 /* BUF: Buffer error */
#define LE_R1_SOP 0x02 /* Start of packet */
#define LE_R1_EOP 0x01 /* End of packet */
#define LE_R1_POK 0x03 /* Packet is complete: SOP + EOP */
#define LE_T1_OWN 0x80 /* Lance owns the packet */
#define LE_T1_ERR 0x40 /* Error summary */
#define LE_T1_EMORE 0x10 /* Error: more than one retry needed */
#define LE_T1_EONE 0x08 /* Error: one retry needed */
#define LE_T1_EDEF 0x04 /* Error: deferred */
#define LE_T1_SOP 0x02 /* Start of packet */
#define LE_T1_EOP 0x01 /* End of packet */
#define LE_R1_OWN 0x80 /* Who owns the entry */
#define LE_R1_ERR 0x40 /* Error: if FRA, OFL, CRC or BUF is set */
#define LE_R1_FRA 0x20 /* FRA: Frame error */
#define LE_R1_OFL 0x10 /* OFL: Frame overflow */
#define LE_R1_CRC 0x08 /* CRC error */
#define LE_R1_BUF 0x04 /* BUF: Buffer error */
#define LE_R1_SOP 0x02 /* Start of packet */
#define LE_R1_EOP 0x01 /* End of packet */
#define LE_R1_POK 0x03 /* Packet is complete: SOP + EOP */
#define LE_T1_OWN 0x80 /* Lance owns the packet */
#define LE_T1_ERR 0x40 /* Error summary */
#define LE_T1_EMORE 0x10 /* Error: more than one retry needed */
#define LE_T1_EONE 0x08 /* Error: one retry needed */
#define LE_T1_EDEF 0x04 /* Error: deferred */
#define LE_T1_SOP 0x02 /* Start of packet */
#define LE_T1_EOP 0x01 /* End of packet */
#define LE_T1_POK 0x03 /* Packet is complete: SOP + EOP */
#define LE_T3_BUF 0x8000 /* Buffer error */
#define LE_T3_UFL 0x4000 /* Error underflow */
#define LE_T3_LCOL 0x1000 /* Error late collision */
#define LE_T3_CLOS 0x0800 /* Error carrier loss */
#define LE_T3_RTY 0x0400 /* Error retry */
#define LE_T3_TDR 0x03ff /* Time Domain Reflectometry counter */
#define LE_T3_BUF 0x8000 /* Buffer error */
#define LE_T3_UFL 0x4000 /* Error underflow */
#define LE_T3_LCOL 0x1000 /* Error late collision */
#define LE_T3_CLOS 0x0800 /* Error carrier loss */
#define LE_T3_RTY 0x0400 /* Error retry */
#define LE_T3_TDR 0x03ff /* Time Domain Reflectometry counter */
#define TX_RING_SIZE (1 << (LANCE_LOG_TX_BUFFERS))
#define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
......@@ -111,43 +111,43 @@ do { printf("LANCE: " fmt , ##args); } while (0)
#define TX_BUFF_SIZE PKT_BUF_SZ
struct lance_rx_desc {
unsigned short rmd0; /* low address of packet */
unsigned char rmd1_bits; /* descriptor bits */
unsigned char rmd1_hadr; /* high address of packet */
short length; /* This length is 2s complement (negative)!
* Buffer length
*/
unsigned short mblength; /* This is the actual number of bytes received */
unsigned short rmd0; /* low address of packet */
unsigned char rmd1_bits; /* descriptor bits */
unsigned char rmd1_hadr; /* high address of packet */
short length; /* This length is 2s complement (negative)!
* Buffer length
*/
unsigned short mblength; /* This is the actual number of bytes received */
};
struct lance_tx_desc {
unsigned short tmd0; /* low address of packet */
unsigned char tmd1_bits; /* descriptor bits */
unsigned char tmd1_hadr; /* high address of packet */
short length; /* Length is 2s complement (negative)! */
unsigned short misc;
unsigned short tmd0; /* low address of packet */
unsigned char tmd1_bits; /* descriptor bits */
unsigned char tmd1_hadr; /* high address of packet */
short length; /* Length is 2s complement (negative)! */
unsigned short misc;
};
/* The LANCE initialization block, described in databook. */
/* On the Sparc, this block should be on a DMA region */
struct lance_init_block {
unsigned short mode; /* Pre-set mode (reg. 15) */
unsigned char phys_addr[6]; /* Physical ethernet address */
unsigned filter[2]; /* Multicast filter. */
/* Receive and transmit ring base, along with extra bits. */
unsigned short rx_ptr; /* receive descriptor addr */
unsigned short rx_len; /* receive len and high addr */
unsigned short tx_ptr; /* transmit descriptor addr */
unsigned short tx_len; /* transmit len and high addr */
/* The Tx and Rx ring entries must aligned on 8-byte boundaries. */
struct lance_rx_desc brx_ring[RX_RING_SIZE];
struct lance_tx_desc btx_ring[TX_RING_SIZE];
char tx_buf [TX_RING_SIZE][TX_BUFF_SIZE];
char pad[2]; /* align rx_buf for copy_and_sum(). */
char rx_buf [RX_RING_SIZE][RX_BUFF_SIZE];
unsigned short mode; /* Pre-set mode (reg. 15) */
unsigned char phys_addr[6]; /* Physical ethernet address */
unsigned filter[2]; /* Multicast filter. */
/* Receive and transmit ring base, along with extra bits. */
unsigned short rx_ptr; /* receive descriptor addr */
unsigned short rx_len; /* receive len and high addr */
unsigned short tx_ptr; /* transmit descriptor addr */
unsigned short tx_len; /* transmit len and high addr */
/* The Tx and Rx ring entries must aligned on 8-byte boundaries. */
struct lance_rx_desc brx_ring[RX_RING_SIZE];
struct lance_tx_desc btx_ring[TX_RING_SIZE];
char tx_buf[TX_RING_SIZE][TX_BUFF_SIZE];
char pad[2]; /* align rx_buf for copy_and_sum(). */
char rx_buf[RX_RING_SIZE][RX_BUFF_SIZE];
};
#define LEDMA_REGS 4
......@@ -155,11 +155,11 @@ struct lance_init_block {
typedef struct LANCEState {
VLANClientState *vc;
uint8_t macaddr[6]; /* init mac address */
uint8_t macaddr[6]; /* init mac address */
uint32_t leptr;
uint16_t addr;
uint16_t regs[LE_NREGS];
uint8_t phys[6]; /* mac address */
uint8_t phys[6]; /* mac address */
int irq;
unsigned int rxptr, txptr;
uint32_t ledmaregs[LEDMA_REGS];
......@@ -192,13 +192,14 @@ static uint32_t lance_mem_readw(void *opaque, target_phys_addr_t addr)
DPRINTF("read areg = %4.4x\n", s->addr);
return s->addr;
default:
DPRINTF("read unknown(%d)\n", saddr>>1);
DPRINTF("read unknown(%d)\n", saddr >> 1);
break;
}
return 0;
}
static void lance_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
static void lance_mem_writew(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
LANCEState *s = opaque;
uint32_t saddr;
......@@ -208,7 +209,7 @@ static void lance_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val
switch (saddr >> 1) {
case LE_RDP:
DPRINTF("write dreg[%d] = %4.4x\n", s->addr, val);
switch(s->addr) {
switch (s->addr) {
case LE_CSR0:
if (val & LE_C0_STOP) {
s->regs[LE_CSR0] = LE_C0_STOP;
......@@ -235,8 +236,7 @@ static void lance_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val
if (val & LE_C0_INIT) {
reg |= LE_C0_IDON | LE_C0_INIT;
reg &= ~LE_C0_STOP;
}
else if (val & LE_C0_STRT) {
} else if (val & LE_C0_STRT) {
reg |= LE_C0_STRT | LE_C0_RXON | LE_C0_TXON;
reg &= ~LE_C0_STOP;
}
......@@ -262,7 +262,7 @@ static void lance_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val
s->addr = val;
break;
default:
DPRINTF("write unknown(%d) = %4.4x\n", saddr>>1, val);
DPRINTF("write unknown(%d) = %4.4x\n", saddr >> 1, val);
break;
}
lance_send(s);
......@@ -288,7 +288,7 @@ static int lance_can_receive(void *opaque)
return 1;
}
static void lance_receive(void *opaque, const uint8_t *buf, int size)
static void lance_receive(void *opaque, const uint8_t * buf, int size)
{
LANCEState *s = opaque;
uint32_t dmaptr = s->leptr + s->ledmaregs[3];
......@@ -304,16 +304,21 @@ static void lance_receive(void *opaque, const uint8_t *buf, int size)
ib = (void *) iommu_translate(dmaptr);
old_rxptr = s->rxptr;
for (i = s->rxptr; i != ((old_rxptr - 1) & RX_RING_MOD_MASK); i = (i + 1) & RX_RING_MOD_MASK) {
cpu_physical_memory_read((uint32_t)&ib->brx_ring[i].rmd1_bits, (void *) &temp8, 1);
for (i = s->rxptr; i != ((old_rxptr - 1) & RX_RING_MOD_MASK);
i = (i + 1) & RX_RING_MOD_MASK) {
cpu_physical_memory_read((uint32_t) & ib->brx_ring[i].rmd1_bits,
(void *) &temp8, 1);
if (temp8 == (LE_R1_OWN)) {
s->rxptr = (s->rxptr + 1) & RX_RING_MOD_MASK;
temp16 = size + 4;
bswap16s(&temp16);
cpu_physical_memory_write((uint32_t)&ib->brx_ring[i].mblength, (void *) &temp16, 2);
cpu_physical_memory_write((uint32_t)&ib->rx_buf[i], buf, size);
cpu_physical_memory_write((uint32_t) & ib->brx_ring[i].
mblength, (void *) &temp16, 2);
cpu_physical_memory_write((uint32_t) & ib->rx_buf[i], buf,
size);
temp8 = LE_R1_POK;
cpu_physical_memory_write((uint32_t)&ib->brx_ring[i].rmd1_bits, (void *) &temp8, 1);
cpu_physical_memory_write((uint32_t) & ib->brx_ring[i].
rmd1_bits, (void *) &temp8, 1);
s->regs[LE_CSR0] |= LE_C0_RINT | LE_C0_INTR;
if (s->regs[LE_CSR0] & LE_C0_INEA)
pic_set_irq(s->irq, 1);
......@@ -339,19 +344,25 @@ static void lance_send(void *opaque)
ib = (void *) iommu_translate(dmaptr);
DPRINTF("sending packet? (dmaptr %8.8x) (ib %p) (btx_ring %p)\n", dmaptr, ib, &ib->btx_ring);
DPRINTF("sending packet? (dmaptr %8.8x) (ib %p) (btx_ring %p)\n",
dmaptr, ib, &ib->btx_ring);
old_txptr = s->txptr;
for (i = s->txptr; i != ((old_txptr - 1) & TX_RING_MOD_MASK); i = (i + 1) & TX_RING_MOD_MASK) {
cpu_physical_memory_read((uint32_t)&ib->btx_ring[i].tmd1_bits, (void *) &temp8, 1);
if (temp8 == (LE_T1_POK|LE_T1_OWN)) {
cpu_physical_memory_read((uint32_t)&ib->btx_ring[i].length, (void *) &temp16, 2);
for (i = s->txptr; i != ((old_txptr - 1) & TX_RING_MOD_MASK);
i = (i + 1) & TX_RING_MOD_MASK) {
cpu_physical_memory_read((uint32_t) & ib->btx_ring[i].tmd1_bits,
(void *) &temp8, 1);
if (temp8 == (LE_T1_POK | LE_T1_OWN)) {
cpu_physical_memory_read((uint32_t) & ib->btx_ring[i].length,
(void *) &temp16, 2);
bswap16s(&temp16);
temp16 = (~temp16) + 1;
cpu_physical_memory_read((uint32_t)&ib->tx_buf[i], pkt_buf, temp16);
cpu_physical_memory_read((uint32_t) & ib->tx_buf[i], pkt_buf,
temp16);
DPRINTF("sending packet, len %d\n", temp16);
qemu_send_packet(s->vc, pkt_buf, temp16);
temp8 = LE_T1_POK;
cpu_physical_memory_write((uint32_t)&ib->btx_ring[i].tmd1_bits, (void *) &temp8, 1);
cpu_physical_memory_write((uint32_t) & ib->btx_ring[i].
tmd1_bits, (void *) &temp8, 1);
s->txptr = (s->txptr + 1) & TX_RING_MOD_MASK;
s->regs[LE_CSR0] |= LE_C0_TINT | LE_C0_INTR;
}
......@@ -369,7 +380,8 @@ static uint32_t ledma_mem_readl(void *opaque, target_phys_addr_t addr)
return s->ledmaregs[saddr];
}
static void ledma_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
static void ledma_mem_writel(void *opaque, target_phys_addr_t addr,
uint32_t val)
{
LANCEState *s = opaque;
uint32_t saddr;
......@@ -390,73 +402,73 @@ static CPUWriteMemoryFunc *ledma_mem_write[3] = {
ledma_mem_writel,
};
static void lance_save(QEMUFile *f, void *opaque)
static void lance_save(QEMUFile * f, void *opaque)
{
LANCEState *s = opaque;
int i;
qemu_put_be32s(f, &s->leptr);
qemu_put_be16s(f, &s->addr);
for (i = 0; i < LE_NREGS; i ++)
for (i = 0; i < LE_NREGS; i++)
qemu_put_be16s(f, &s->regs[i]);
qemu_put_buffer(f, s->phys, 6);
qemu_put_be32s(f, &s->irq);
for (i = 0; i < LEDMA_REGS; i ++)
for (i = 0; i < LEDMA_REGS; i++)
qemu_put_be32s(f, &s->ledmaregs[i]);
}
static int lance_load(QEMUFile *f, void *opaque, int version_id)
static int lance_load(QEMUFile * f, void *opaque, int version_id)
{
LANCEState *s = opaque;
int i;
if (version_id != 1)
return -EINVAL;
return -EINVAL;
qemu_get_be32s(f, &s->leptr);
qemu_get_be16s(f, &s->addr);
for (i = 0; i < LE_NREGS; i ++)
for (i = 0; i < LE_NREGS; i++)
qemu_get_be16s(f, &s->regs[i]);
qemu_get_buffer(f, s->phys, 6);
qemu_get_be32s(f, &s->irq);
for (i = 0; i < LEDMA_REGS; i ++)
for (i = 0; i < LEDMA_REGS; i++)
qemu_get_be32s(f, &s->ledmaregs[i]);
return 0;
}
void lance_init(NICInfo *nd, int irq, uint32_t leaddr, uint32_t ledaddr)
void lance_init(NICInfo * nd, int irq, uint32_t leaddr, uint32_t ledaddr)
{
LANCEState *s;
int lance_io_memory, ledma_io_memory;
s = qemu_mallocz(sizeof(LANCEState));
if (!s)
return;
return;
s->irq = irq;
lance_io_memory = cpu_register_io_memory(0, lance_mem_read, lance_mem_write, s);
lance_io_memory =
cpu_register_io_memory(0, lance_mem_read, lance_mem_write, s);
cpu_register_physical_memory(leaddr, 4, lance_io_memory);
ledma_io_memory = cpu_register_io_memory(0, ledma_mem_read, ledma_mem_write, s);
ledma_io_memory =
cpu_register_io_memory(0, ledma_mem_read, ledma_mem_write, s);
cpu_register_physical_memory(ledaddr, 16, ledma_io_memory);
memcpy(s->macaddr, nd->macaddr, 6);
lance_reset(s);
s->vc = qemu_new_vlan_client(nd->vlan, lance_receive, lance_can_receive, s);
s->vc =
qemu_new_vlan_client(nd->vlan, lance_receive, lance_can_receive,
s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
"lance macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
s->macaddr[0],
s->macaddr[1],
s->macaddr[2],
s->macaddr[3],
s->macaddr[4],
s->macaddr[5]);
"lance macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
s->macaddr[0],
s->macaddr[1],
s->macaddr[2], s->macaddr[3], s->macaddr[4], s->macaddr[5]);
register_savevm("lance", leaddr, 1, lance_save, lance_load, s);
qemu_register_reset(lance_reset, s);
}
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